Weight regulator



5 Sheets-Sheet 1 w.v BARRETT- WEIGHT REGULATOR Filed oct. 12, 1934 sept. 1o, 1935.

Sept- 10, 1935. w. BARRETT 2,014,243

WE I GHT REGULATOR 'Fil'ed out. 1 2, 1934 5 sheets-sheet 2` INVENTOR WML/,4M BARRETT BY f/Twwm ATTORNEY sept. 1o, 1935. w` BARRETT WEIGHT REGULATOR Filed Oct. 12, 1934-v 5 Sheets-Sheet 5 yPfff- ATTORNEY Sept. l0, 1935. l w. BARRETT WEIGHT REGULATOR Filed oct. 12, 1934 5 Sheets-Sheet 4 m s m IVENTOR P fwd M# Mm W ATTORNEY Sept l0, 1935- w. BARRET-r WEIGHT REGULATOR Filed 001'.. l2, 1934 5 Sheets-Sheet 5 INVENTOR W/L L IAM BAP/Perf ATTORNEY Patented. sept. 1.o, 1935 UNITED ,STATES PATENT g OFFICE;

This invention relates to paper making machines and systems connected to the paper making machines, and has for an important object thereofv the provision of a means inserted in the system connected to the paper making machine for controlling the quantity of pulp as it passes y into the system.

Another object of this invention is to provide Y a means in the system of a paper making machine for regulating the weight or amount of pulp that will reach the paper machine, thereby insuring Ehe weight of th paper will be substantially uniorm. The above and various other objects and ad'- vantages of thisinvention will in part be described and in part be understood from the following detailed description of the present preferred embodiments, the same being illustrated in the accompanying drawings wherein:

Figure 1 is a iront elevation view of the invention.

Figure 2 is a side elevation in sections with the parts broken away.

Figure 3 is an elevational view of the gate.l Figure 4 is a section taken on line A--A. Figure 5 is a top plan view of the weight control alarm.

Figure 6 is a view of the dial and control screw. Figure 7 is a side View of the arrangement shown in Figure 6.

Figure 8 is a sectional view of a pilot control Y valve.

Figure 9 is a perspective view of the container showing a modied form of pulp control.

For the purpose of this application there has been elected to set forth two particular arrangements of the apparatus for controlling the quan-l tlty of pulp delivered to the paper machines, but it is to be understood that they are here set forth for illustrative purposes only and arenot tol be accorded any interpretation such as might have the effect of limiting what is claimed as invention short of its true and comprehensive scope in the art.

Referring to the drawings wherein like numerals of references designate corresponding parts throughout the views the numeral I5 indicates a box or container that has an end attached division I6. Located in the container l5 is gate opening I1, which is in the form shown in Figure 1,` and operatively mounted adjacent the opening |1 is gate I9.

To prevent the pulp from accumulating between the gate` I9 and the edge of the gate opening I1, members 20 are mounted in the manto the gate by bolts or the like 23.

ner shown in Figure 4 which permits easy movement of the gate but at the same time prevents sticking or accumulation of pulp beneath the gate. i

. Secured to the upper edge of the gate 'opening '5 I1 is exible member 2| against which the gate I3 is adapted to slide. 'I'he elastic member 2| prevents pulp frombeing deposited between the gate and the edge of the gate opening, as well as to hold the gate rigidly against the members l0 20. The members 20 consist of a screw or brad, having an enlarged innel` end or button. Attached to the upper edge of gate I9 is screw thread connection member 22 which is suitably secured Mounted in' the compartment I6 and directly in front of no zzle opening I8 is impulse bucket v 24. The nozzle I8 is tapered in the manner shown in Figure 2 and is held in place by nails, screws or any suitable means. Impulse bucket 24 is sup- 20 ported by member 25 and secured thereto by screw 26. The member 25 is operatively connected to member 21 by means of threaded bolt 28.

Secured between the members 25 and 21 is elas- 25 tic diaphragm 29 which is supported by screws 30 to housing 3|, mounted within the housing 3|, and connected to member 21 is forked arms 32. Near the outer end of arm 32 and. mounted on members 33 and 34 are control rods 35 and 36. 30

' Suitably connected to member ,35 is pilot valve 31, whose function will hereinafter be described.

A dash pot 38 is formed integral of the housing in 3| and is operated by member 36. The dash pot is used to dampen the rapid movement of arm 32, but of course, the dash pot may be dispensed with if desired.

Arm 32 is pivotally mounted within the housing 3| on members 39. Mounted within the arm 32 are members 40 upon which weight 43 is adapt- 40 ed to ride by means of rollers 42. So that the gravitational pull of the weight 43 can be adjusted there is provided an opening within the weight 43 which is closed by member 44. Generally the weight is controlled by placing within 45 the opening mercury or any other suitable material. Connected to weight 43 are members 45 and which are connected to rod 46 by member 41. Rod 46 is suitably connected at 48 to member 53. 50

Housing 3| is closed by cover 50 to prevent moisture, water, or any other substance from accumulating or interfering with the operation of the weight and arms. Cover 50 is secured in place by screws 5I or any other suitable securing 55 may be and preferably is provided with a' handle 64.

SuitabLv mounted upon the upper edge of container I5 is bracket 65, which is secured to the container by members 66. Bracket member 65 supports operating cylinder 51 directly over gate member I 8. Mounted within cylinder 61 is piston 68 which has connected thereto rod which is connected to member 22 which is mounted upon the gate I9. Secured to rod 88 is arm member '15 which has an elongated slot 1I in the outer end thereof. Arm 13 is connected to the dial control frame 56 through medium of bolt 12 which passes through elongated slot 1I.

The pilot control valve 31 may be of any suit'- able construction and the arrangement shown in Figure 8 has proven very satisfactory in operation. Pipe 12' extends to the source of supply fluid which operates the piston 68. Extending from the pilot control valve 31 are bleed lines 13, which lead to the compartment I6. Leading from Y pilot control' valve to the bottom of cylinder 61'is line 14, which supplies operating duid to the lower side of the piston 68. Extending from the top of the cylinder` 61 and connecting the top of the cylinder to the pilot control valve is pipe 15.

The dial v58 can be calibrated in any desired manner to indicate the desired amount of pulp to form a definite weight oi' paper. The dial 59 which is operatively mounted upon movable block 56 which block is connected tothe top of the link by a pin connection. The link or rod is connected by pin stud to member 58 which passes into the housing 3|, in which is mounted weight control lever. Connected to the member 53 is a forked lever which is connected to a member by a ball bearing pin connection and the last mentioned member is suitably connected to the movable weight 43.

' Operation of the preferred apparatus Liquid bearing the pulp is delivered to gate is discharged through nozzle I8. The desired quantity of wood pulp that is to be delivered to the paper making machine, having. been set by the dial 59, will be discharged through the gate opening, and through nozzle I 8. Referring to drawings the gate opening as shown in Figures 1 and 3 will always be substantially a perfect square. If the 'gate vI8 -is raised or lowered the opening under all conditions remains square.

If the consistency of the pulp bearing liquid varies, or in other words, if the amount of pulp inthe water should decrease, an increased force would be applied to the impulse bucket 2 4. The

increased force applied to the bucket 24 causes arm 25 to be forced outwardly which through the medium of the diaphram 36 and arm 32 causes the pilot valve to be moved to the position whereby operating uid is permitted to travel through` pipe 14 to the bottom side of cylinder 61. The

` piston 68 then moves upwardly which increases the sise of the gate opening I1. As the piston I8 moves upwardly the dial control unit is likewise raised through the medium of arm Il and this motion is transmitted to movable weight mounted upon arm 32 by means of the previously described connecting links or members. The weight is moved to a position that will counter balance the increased force acting upon the impulse bucket and the equilibrium is once again established.

If it is desired to increase the weightof the 10 pulp discharged over a. given time then a greater gate opening will be necessary if the same force acting upon the impulse bucket is to be maintained. This is accomplished by turning the hand wheel .63 counterclockwise which lowers the mov- 15 able block 56. This motion is transmitted through the previously described means to the movable weight 43, restoring it to a position that will counter balance the force acting upon the impulse bucket 2 4.v

To increase the change in the gate opening for any given change in the force acting upon the impulse bucket 24, the dial control unit and pin stud are placed further-'out on their respective supports. This will decrease the movement of the 25 movable weight in comparison to the movement of the piston 68.

1f the force acting upon the vimpulse bucket is decreased or it is desired to decrease the gate opening the. conditions above described would 30 be reversed.

Secured in the housing 3| by means of screws is a block 42 the purpose of which is to lift the regulating arm when the weight reaches its extreme inner position due to the piston traveling 35 downwardly. When the stock is shut oil' from the container I5 there will be no force acting upon the impulse bucket 24. The regulating arm 32 will fall, opening the pilot valve 31, admitting operating uid to the top ofthe piston 68. The 40 motion of the downward travel of the rod 68 is transmitted to the weight 43 moving it toward the block 42 until it comes in contact therewith. The weight will slide upon the block 42. raising the arm 32 restoring the pilot valve to the neu- 45 tral position and stop the movement of the piston.

'In Figure 9 is shown a modified form of the invention. The container or reservoir I5 is identical in both instances. In reservoir I5 is placed division partitions 83 and 8l. The partition .8| 50 is for thepurpose of preventing pulp in the fluid suspension, as it is forced into the reservoir through opening 82,. from being forced directly ,out of said reservoir. 'Ihe pulp flows over top of'the partition 6I and into the front compart- 55 ment or section of the reservoir, located between the gate opening I1, and the nozzle I8 is a baille 83, purpose of which is to prevent cross currents between the gate and the nozzle openings.

'I'he impulse bucket 24 is of the same construc- 60 tion as that shown in Figure 2 and is supported in operating position by arm member 25. The arm or actuating rod 25 has secured thereto a vcounter acting spring 34 by means of member 84. The arm 25 is supported by oscillatory shaft 65 85 freely mounted in suitable bearings at either end. Member 86 in which the bearings for oscillator rod 85 are mounted is suitably secured to the reservoir I5. v

Operatively connected to shaft 85 is primary 70 lever 81 which is connected at 88 toa secondary lever 83. Secured to the free end of the second- 'ary lever 88 is rod 80 which is connected at its upper end to movable block 6I. The movable block SI is mounted upon adjusting screw 9|. 75

The purpose of the adjusting screw is to control the amount of pulp that is to be delivered for a given setting'of the gate opening Il. Secured to the reservoir I5 are bearing members 93 which supportl oscillator shaft 92. Attached to the oscillator shaft 92 is member 94 to which is secured an operating rod 95. The gate operating rod 95 is attached to gate I9 in any desired manner.

Attached to secondary lever 89 is rod 96 which is adapted to actuate pilot valve 91. Fluid operated piston |02 receives its operating fluid through pipes |00 and |0|, as controlled by pilot valve 91. Fluid is supplied to the -pilot valve through pipe 98 and a pilot valve is provided with a bleed 99.

If the consistency of the stock changes the velocity increases or decreases through the friction flow nozzle |8 proportionately with the consistency change. 'I'his change in force changes the positionof the impulse bucket which change is transmitted to the oscillator shaft 85. The movement of the oscillator shaft 85 changes position of the primary lever 8l which in turn changes the position of the secondary lever 89. The movement of the secondary lever changes the position of the pilot valve emitting uid to the conduit |02 which causes it to move. piston 02 is transmitted by means of rod |03, member |04, and oscillator shaft 92 which causes rod 95 to change its position, thus moving the gate I9. The movement of the member |04 is transmitted by rod 90 to the secondary lever 89 which closes the pilot valve and holds the piston |02 in the changed position.

Due in part to the construction of the frictional flow nozzle i8 and the impulse bucket 24 a slight change in the amount of pulp being discharged from the reservoir results in a change in the velocity in the stream striking the impulse bucket. The construction of the impulse bucket is such as to change the direction of the stream striking it through 180 whereby the maximum amount of kinetic energy is imparted to th'e impulse bucket at all times. A slight variation in the consistency of the stock results in suilcient change in the position of the impulse bucket to actuate the gate control means. If desired the dash pot may be connected to secondary lever 89 so as to dampen any undue movement thereof.

There will be many variations and modifications obviousto those skilled in the art that may be made which falls within the scope of this yinvention and Without departing from the spirit machines, including a container, two openings in 3. An automatic regulator for controlling the amount of pulp delivered to a paper making machine, including pulp container, at least two openings in said container, a gate for controlling The movement of the the size of one of said openings, an impulse bucket mounted adjacent said second opening and means controlled by the impulse bucket for regulating the movement of the said gate.

4. An automatic regulator for paper making machines comprising a reservoir for pulp, two openings in said reservoir and located adjacent each other, a gate for controlling the size of one opening, an impulse bucket mounted adjacent the other opening, a movable arm supporting said impulse bucket, a weight controlled arm operatively connected to said ilrst mentioned arm, a fluid operated piston, operatively connected to said weight arm and means for connecting said piston to said gate. 1

5. An automatic regulator for paper making machines, comprising a reservoir, at least two openings in said reservoir through which pulp may be discharged, a nozzle mounted in one opening, a gate operatively mounted adjacent said other opening, an impulse bucket mounted adjacent one end of said nozzle, a pivotally mounted arm, means for connecting said arm to said impulse bucket, a weight movably mounted upon said pivoted arm, a pivot control valve operatively 2 connected to certain pivoted arm, a piston, means for connecting said gate with said piston, and means connecting said piston and said pilot valve.

6. In an automatic regulator for paper making machines, a pulp container, openings in said container, a slidable gate mounted adjacent one ot said openings for controlling the size thereof, an impulse bucket operatively mounted adjacent another opening, a pivotally mounted arm operatively connected to said impulse bucket, a piston 3 operatively connected to said pivoted arm, said piston operatively connected to said gate, a dial control means, and means for operatively connecting said dial control means and said pivoted arm.

'7. In combination withv a pulp reservoir having openings therein for the discharge of pulp, means for controlling the size of one of the said openings, an impulse bucket mounted adjacent another opening, and means operatively connecting said impulse bucket and said size control 4 means.

8. Anautomatic regulator for paper making machines, comprising a reservoir having open.- ings therein, through which pulp is discharged, a tapered nozzle in one of said openings, a gate 5 operatively mounted adjacent another of said openings, an impulse bucket mounted adjacent one end of said nozzle, a pivotally mounted arm, a weight mounted upon said arm, means for operatively connecting said arm and said impulse 5 bucket, a piston operatively connected to said pivoted arm, means for connecting said piston to said gate, and dial control means connected to said piston and to said nozzle weight.

9. An automatic regulator for paper making 60 machines, comprising a reservoir having openings therein, through which pulp is discharged, a tapered nozzle in one of said openings, a gate operatively mounted adjacent another lof said openings, an impulse bucket mounted adjacent 6 one end of said nozzle, a pivotally mounted arm, a dash pot connected to said pivoted arm, a weight mounted upon said arm, means for operatively connecting said arm and said impulse bucket, a piston operatively connected to said 7 pivoted arm, means for connecting said piston to said gate, and dial control means connected to said piston and to said nozzle weight.

10. An automatic regulator for paper making machines, including container, two openings in 7 las said container through which pulp is delivered, means for Adiverting the pulp discharged from one opening 180, av gate operatively mounted adjacent the other openings, and means operatively connecting the gate and the means for diverting the pulp.

11. An automatic regulator for paper making machines, including a reservoir. two openings for discharging pulp from saidreservoir. a gate operatively mounted adjacent one opening, an impulse bucket (of diverting the pulp 180 mounted adjacent the other opening, and means for controlling the movement oi the gate operatively connected to said impulse bucket.

12. An automatic regulator for paper making machines, consisting of a reservoir having pulp discharge openings therein, a gate mounted adjacent one of said openings, a iluid operated plston connected to said gate by means of a piston rod. a dial control unit supported by said piston rod and adapted to move therewith, an impulse bucket mounted adjacent another opening in said reservoir and adapted to be actuated by the discharge oi pulp and means for operatively connecting said impulse bucket and said piston.

i3. In a regulator for paper making machines a reservoir for containing pulp in a iluid condition, two openings in said reservoir through which pulp may be discharged, an impulse bucket mounted adjacent one oi said openings, a pivotally supported arm operatively connected to said impulse bucket, a movable weight mounted on said pivoted arm. a dash pot operatively connected to said pivoted arm, a pilot valve controlled by the movement of said pivoted arm, a iluid operated piston, and means for connecting said pilot control valve with fluid operated piston, a movable gate mounted adjacent one of said openings in said reservoir, means of connecting said uid operated piston with said gate, and means operatively connected to said fluid operated piston and connected to said movable weight upon said pivoted arm.

14. In a regulator for paper making machines a reservoir for containing pulp in a iluid condition, two openings in said reservoir through which pulp may be discharged, a tapered nozzle mounted in one of said openings, an impulse bucket mounted adjacent said nozzle, a pivotally supported arm operatively connected to said impulse bucket, a weight mounted on said pivoted arm, a dash pot operatively connected to said pivoted arm, a pilot valve controlled by the movement of said pivoted arm, a iluid operated piston, and means lor connecting said pilot control valve with iluid operatd piston, a movable gate mounted adjacent one oi' said openings in said reservoir, means oi cor necting said uici operated piston with said gate, and means operatively connected ,to said movable gate upon' said pivoted arm.

15. An automatic regulator ior paper making machines, comprising a container tor pulp in a 5 fluid condition, openings in said container through which pulp is discharged, a nozzle mounted in one of said openings, an impulse bucket mounted adjacent one end oi said nozzle. an arm operatively connected to said impulse bucket and 10 adapted to be supported by an elastic diaphragm. a pivotally mounted arm. connected to said arm supporting the said impulse bucket, a movable weight mounted upon said pivoted arm, a pilot valve adapted to be operated by the movement o! i6 said pivoted arm,'a fluid operated piston mounted on said container, a means connecting said nuld operated piston to said pilot valve, a gate mounted adjacent one oi' said openings in said container, a piston rod extending from said iiuid operat- 20 ed piston and connected to said gate, a dial control .means supported by said piston rod, said dial control means operatively, connected to said movable weight mounted upon said pivoted arm.

16. A regulator for paper making machines 25 comprising a reservoir, two openings in said reservoir through which pulp is discharged, a gate mounted adjacentone of said openings, a nozzle secured in one oi' said openings,'an impulse bucket supported adjacent one end oi' said nozzle, an os- 30 cillatable shaft attached to said bucket supporting means, levers operatively attached to said oscillatable member, a pilot valve operated by one of said levers, a power cylinder operatively connected to said pilot valve, a second operating member operatively attached to said power cylinder and means attached to said second oscillating member for changing the position of said gate.

17. In combination with a reservoir having at 40 least one division therein a movable gate and an impulse bucket mounted adjacent discharge openings in said reservoir, means including moving members for operatively connecting said impulse bucket and said gate.

18. An automatic regulator for paper making machines, including a reservoir for pulp, two openings in said reservoir through which pulp is .iischarged, a gate mounted in one of said openings of such construction whereby a square delivery port is presented, an impulse bucket mounted adjacent one ot said openings and means operatively connecting said impulse bucket and said gate, whereby said gate moves upon movement of said impulse bucket.

WILLIAM BARRETT. 

